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It is the closest scientists have come yet to recreating Harry Potter’s invisibility cloak.

An ultra-thin flexible material has been developed that can wrap around an object and make it vanish.

Although the ‘invisibility skin’ has only been tested at microscopic scales, scientists believe it should be possible to create larger versions in the future.

The 80 nanometre thick film is made from gold ‘nanoantenna’ blocks that interfere with the normal scattering of light waves.

In the test, the cloak was wrapped around a tiny lumpy and dented bump measuring 36 micrometres square – about the size of a few living cells. Once activated by switching the polarisation of the nanoantennae, it made the object invisible.

Lead researcher Dr Xiang Zhang, from the US Department of Energy’s Lawrence Berkeley National Laboratory, said: ‘This is the first time a 3D object of arbitrary shape has been cloaked from visible light.

‘Our ultra-thin cloak now looks like a coat. It is easy to design and implement, and is potentially scalable for hiding macroscopic objects.’

In the Harry Potter stories, the boy wizard hides from his enemies using a cloak that renders the wearer invisible. It works by magic rather than the light-channelling ‘metamaterials’ used by scientists.